Game uses two standard decks without Jokers (104 cards). Remove any pair of cards of the same rank regardless of suit. Jack, Queen and King can be removed with each other regardless of the suit and rank. You can remove a card when there are no cards touching it on the right and left side. Tap a card to select a card. To remove a pair, select the first card and tap on the second card. You start with -52 points. For each removed card you get one point. If you turn on the timer - you lose one point for every 30 seconds.

This image is a schematic representation, not a screenshot from the game. Screenshots are platform specific. You can see screenshots in the store.